问题 单项选择题

求和式3+33+333+…+33…3(10个3)计算结果的万位数字

A.5

B.2

C.3

D.0

答案

参考答案:D

解析: 个位10个3相加,和为30,向十位进3;十位9个3相加,和为27,加上个位的进位3得30,向百位进3;百位8个3相加,和为24,加上十位的进位3得27,向千位进2;千位7个3相加,和为21,加上百位的进位2得23,向万位进2;万位6个3相加,和为18,加上千位的进位2得20,万位的数是0。所以应选择D。

完形填空

SECTION B(10 points)

Directions: Read the following passage. Answer the questions according to the information given in the passage and required words limit. Write your answers on your answer sheet.

He could have been president of Israel or played the violin at Carnegie Hall, but he was too busy thinking. His thinking on God, love and the meaning of life grace our greeting cards and day-timers.

Fifty years after his death, his shock of white hair and hanging mustache still symbolize genius. Einstein remains the foremost scientist of the modern time. Looking back 2,400 years, only Newton, Galileo and Aristotle were his equals.

Around the world, universities and academies are celebrating the 100th anniversary of Einstein's "miracle year" when he published five scientific papers in 1905 that basically changed our grasp of space, time, light and matter. Only he could top himself about a decade later with his theory of relativity.

Born in the age of horse-drawn carriages, his ideas launched a technological revolution that has made more change in a century than in the previous two thousand years. Computers, satellites, telecommunication, lasers, television and nuclear power all owe their invention to ways in which Einstein exposed a stranger and more complicated reality underneath the world.

He escaped Hitler's Germany and devoted the rest of his life to human rights and peace with an authority unmatched by any scientist today, or even most politicians and religious leaders. He spoke out against fascism and racial prejudice. His FBI file ran 1,400 pages.

His letters expose a disorderly personal life -- married twice and indifferent toward his children while absorbed in physics. Yet he charmed lovers and admirers with poetry and sailboat outings. Friends and neighbors fiercely protected his privacy.

81.What is the passage about?(no more than 5 words)

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82.What gifts does the first paragraph imply that Einstein have?(no more that 10 words)

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83.Why was 1905 called Einstein’s “miracle year”?(no more than 15 words)

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84.How do you describe Einstein when he was not buried himself in his research?(no more that 15 words)

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填空题